1S96.] 219 



1st submarginal, and runs to a point just below the termination of the 1st recurrent 

 nervure, thence bifurcating, the arms at first rapidly diverging, then running 

 parallel or nearly so to beyond the 2nd recurrent nervure. 2nd submarginal cell 

 long, narrowed, less than one-half to marginal. Legs wholly black, except an incon- 

 spicuous reddish streak on anterior tibiae, and the clear yellowish-white basal third 

 of hind tibiae ; spines pallid ; claws rufescent, rather deeply bifid. Abdomen smooth 

 and very shiny, its hindmost half with a fine sericeous pile ; dorsum of first segment 

 wholly impunctate. 



'Rah.: Dade Co., Florida (E. A. Schwarz ; U. S. N. M., No. 

 19113). 



lu its large size, this agrees only with basalis, to which it is not 

 nearly related. Its affinity is with conjliiens. Smith, which also occurs 

 in Florida, but that is smaller, and differs in the punctuation of the 

 thorax and the colour of the legs. 



Calliopsis semibufus, n. sp. 



? . Length, 10 mm., head and tliorax black, abdomen bright rufous, the whole 

 insect shining, pubescence greyish. Head broader than long, front with a median 

 groove, punctures sparse throughout ; antennae short, black, with the last six joints 

 of the flagellum beneath wholly, and the others more or less, rufous ; scape long. 

 Head tolerably hairy, the hairs rather long, but not dense enough (except on cheeks) 

 to hide the surface. Anterior margin of clypeus with shining rufous liairs. Clypeus 

 broad and low, reaching to bases of mandibles ; labrum prominent, with a transverse 

 ridge ; mandibles stout, beset with long hairs, rufous towards tips, with a cream- 

 coloured patch near base. Tip of glossa acute, not bristly. Ocelli placed in a 

 curve. The pale face-markings are cream colour, and consist of a large irregularly 

 triangular patch constituting the lateral extension of the clypeus on each side, a 

 small spot at the angle between the clypeus and the orbit, a semilunar supraclypeal 

 mark, and triangular dog-ear marks. Thorax with the pubescence sparse, except on 

 pleura and sides of metathorax. Tegulse shining testaceous, with a cream-coloured 

 spot ; tubercles wholly dark. Punctures of mesothorax and scutellum extremely 

 sparse ; scutellum not bilobed. Margins of postscutellum very hairy. Base of 

 metathorax shining, bare, impunctate, with a shallow median depression. Wings 

 hyaline, the extreme apex with a small fuscous cloud, nervurcs and stigma sepia- 

 brown. Stigma excessively narrow, almost obsolete, much as in Perdita latior ; 

 marginal cell long, rather obliquely truncate and minutely appendiculate at tip ; 

 second submarginal long, narrowed one-half to marginal, receiving the recurrent 

 nervures at the end of its first and the beginning of its last fifths. Legs black, a 

 small yellowish spot at base of four anterior tibiae, hairs on tarsi shining brownish. 

 Abdomen shining rufous, more or less hairy at sides, and especially tip, dorsum of 

 first segment impunctate, venter nearly all black. 



Sah. : Las Cruces, N. M., on Sphceralcea ancjustifolia in the garden 

 of my house, August 25th, 1895. 



Allied to C. aldominalis, Cr., but differs by the clear wings, dark 

 tubercles, &c. 



T2 



